Recommendations For The Customer-Supplied Cable - Schneeberger MINISCALE PLUS Manual

6
Output Signals and Supply
6.4

Recommendations for the Customer-Supplied Cable

24
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The flexible printed circuit board between the sensor and the interface module can
only be used statically. The bending radius of the flexible printed circuit board must
not fall below 2 mm. The dynamic movements must be managed by a customer-
supplied cable.
• In order to ensure maximum resistance to interference, a shielded twisted pair
cable is recommended. A cable with additional shielding should be used if
necessary.
• Suitable shielding must be ensured in any case.
• The cable shielding must not act as a potential equalization conductor.
• Place the encoder cable apart from the power cables and ensure that the two
are not parallel.
• If the cable is to be run through a cable carrier, a flexible cable that is suitable for
this purpose should be used.
• Keep the cable short
• The cable length between the interface module and the controller should not
exceed 30 meters.
• The maximum cable length is reduced when increasing speeds (above 1.2 m/s)
in connection with the digital interface module.
35
30
25
20
15
10
5
0
0.1
Example: For a maximum speed of 3.2 m/s with the digital interface module, the
data rate is 8 MHz. This corresponds to a maximum cable length of 15 meters.
• Bus termination resistors for RS 422 should be 120 Ohms.
1
Data rate in Mbit/s
10